At least on major boulevards around my home and office, where speed limits range from 30 to 40 miles per hour (~64km/h), engine noise is dramatically more signi

At least on major boulevards around my home and office, where speed limits range from 30 to 40 miles per hour (~64km/h), engine noise is dramatically more significant than tire or wind noise. These major boulevards with three to four lanes per direction are conduits for rigs, buses, and utility trucks with large diesel engines. As a pedestrian, when these things roar by, all I hear is engine noise. Grinding, roaring engine noise. Yes, they have tires, and yes, there must be some wind noise, but right down there at street level, it's all drowned out by the engine. I agree with the grandparent, if we see these larger vehicles go electric in my lifetime, I will be very happy at the reduction in noise.